Remove/install camshaft

AR05.20-W-6292A

19.10.10

ENGINE 902.9 in MODEL 957 with CODE (MS8) Natural gas engine

ENGINE 904.904 in MODEL 670

ENGINE 904.908 /914 /923 /936 in MODEL 668, 670

ENGINE 904.9 in MODEL 374, 375, 673, 674, 676, 958, 970, 972, 975, 976

ENGINE 906.9 in MODEL 374, 958, 970, 972, 974, 975, 976

ENGINE 906.9 in MODEL 374, 375, 950, 952, 953, 954, 957, 958

W05.20-1011-09

1 Camshaft

2 O-ring

3 Tappet rod

4 Valve tappet

5 Crankshaft sprocket

6 Timing case

7  Guide sleeve

B16 Camshaft position sensor (for model 374, 375, 673, 674, 676, 950, 952, 953, 954, 958, 970, 972, 974, 975, 976)
TDC sensor for cylinder 1 (camshaft) (for model 957)

B48 TDC sensor (for model 668, 670)

Modification notes

23.9.09	Value changed: cam elevation for valve cams over the base circle dia.	Engine 900.9, 904.9, 924.9	*BE05.20-N-1007-04B
	Value changed: cam elevation for valve cams over the base circle dia.	Engine 900.9, 904.9, 924.9	*BE05.20-N-1007-04B
	Value changed: cam elevation for unit pump over the base circle dia.	Engine 900.9, 904.9, 924.9	*BE05.20-N-1008-04B

 	Remove/install
 Danger!	Risk of injury caused by body parts being pinched or crushed as cab is tilted	Ensure that no one is within tilting range of cab as it is being tilted. Always tilt cab all the way to end position and secure with safety strut.	AS60.80-Z-0001-01A
1	Tilt cab	 For model 957 open maintenance flap.
		 Installation: Only tilt back cab after filling the engine oil circuit.
	Notes on tilting the cab		AH60.80-N-0003-01A
2	Remove soundproofing on frame below
3	Extract or drain engine oil	Model 374, 375, 673, 674, 676, 950, 952, 953, 954, 957, 958, 970, 972, 974, 975, 976	AR18.00-W-3035-02A
			*BA01.45-N-1002-01B
			*BF18.00-N-1001-01C
	Engine oil and filter change	Model 668, 670	AP18.00-D-0101C
4	Remove engine	Model 374.4, 375.1, 673, 674, 676, 958.0, 970, 972, 974, 975, 976	AR01.10-W-2400D
		Model 374.5, 375.3, 950, 952, 953, 954, 958.2	AR01.10-W-2400F
		Model 668, 670 except with engine 904.904	AR01.10-D-2400D
		Model series 957	AR01.10-W-2400C
		Model 670 with engine 904.904  No remove/install instructions have been created for this model.
5	Install engine in engine assembly stand
6	Remove rocker arm assembly	Engine 904.9 up to engine end no. 039739, Engine 906.9 up to engine end no. 041955	AR05.00-W-5521A
		Engine 904.9 from engine end no. 039740, Engine 906.9 as of engine end no. 041956 without code (MS8) natural gas engine	AR05.00-W-5521C
		Engine 902.9, 906.9 with code (MS8) Natural gas engine	AR05.00-W-5521H
7	Pull out push rods (3)
8	Remove vibration damper	Model 374, 375, 673, 674, 676, 950, 952, 953, 954, 958, 970, 972, 974, 975, 976	AR03.30-W-1600A
		Model 668, 670	AR03.30-D-1600D
		Model series 957	AR03.30-W-1600D
9.1	Remove fuel pump	Without code (MS8) Natural gas engine	AR47.20-W-5713A
9.2	Remove cover or guide pulley holder in front of camshaft (1) on crankcase	With code (MS8) Natural gas engine  Install new gasket.
10	Remove all unit pumps	 Not with code (MS8) natural gas engine.	AR07.15-W-8950A
11	Rotate engine in engine repair stand	 Rotate engine by about 180° so that valve tappets (4) detach from camshaft (1).
12	Remove oil pan	Model 374, 375, 950, 952, 953, 954, 958, 970, 972, 974, 975, 976	AR01.45-W-7500C
		Model 668, 670	AR01.45-D-7500D
		Model 673, 674, 676	AR01.45-W-7500A
		Model series 957	AR01.45-W-7500D
13.1	Pull out camshaft position sensor (B16) or cylinder 1 (camshaft) TDC sensor (B16) on crankcase	Model 374, 375, 673, 674, 676, 950, 952, 953, 954, 957, 958, 970, 972, 974, 975, 976
		 Installation: Replace O-ring (2) and push in camshaft position sensor (B16) or cylinder 1 (camshaft) TDC sensor (B16) all the way.
13.2	Pull out top dead center sensor (B48) on crankcase	Model 668, 670
		 Installation: Replace O-ring (2) and push in top dead center sensor (B48) all the way.
14	Remove timing case (6)	Engine 904.9, Engine 902.9, 906.9 without rear engine power take-off	AR01.60-W-8200A
		Engine 902.9, 906.9 with rear engine power take-off	AR01.60-W-8200F
15	Pull camshaft (1) out of crankcase		AR05.20-W-6292-02A
			*904589021400
16	Pull valve tappets (4) out of crankcase	 Mark valve tappets (4) relative to crankcase.
	Check
17	Inspect valve tappets (4)	 If damage or wear is present: 
		Replace according to valve tappet (4).
		Valve tappet outside Ø	*BE05.30-N-1004-04B
		Valve tappet bore in crankcase	*BE05.30-N-1005-04B
18	Inspect hardness, concentricity and cam elevations of camshaft (1)		AR05.20-W-6292-03A
		Camshaft bearing journal diameter at all bearing points	*BE05.20-N-1001-04B
		Hardness of cams and journals	*BE05.20-N-1005-04B
		Camshaft smooth operation deviation	*BE05.20-N-1006-04B
		Cam elevation of valve cams	*BE05.20-N-1007-04B
		Cam elevation of unit pump	*BE05.20-N-1008-04B
			*000589202100
			*001589532100
			*363589022100
19	Install in the reverse order
20	Fill engine oil circuit		AR18.00-W-1600A

Check values for camshaft

Number	Designation			Engine 902.9, 906.9, 925.9, 926.9	Engine 900.9, 904.9, 924.9


BE05.20-N-1001-04B	Camshaft bearing journal diameter at all bearing points	Default	mm	67.930 to 67.911	67.930 to 67.911
		Deviation -0.10	mm	67.830 to 67.811	67.830 to 67.811
		Deviation -0.25	mm	67.680 to 67.661	67.680 to 67.661
		Deviation -0.50	mm	67.430 to 67.411	67.430 to 67.411
BE05.20-N-1005-04B	Hardness of cams and journals		HRC	57 to 63	57 to 63
BE05.20-N-1006-04B	Camshaft concentricity variation when mounted on outer bearing journals	Timing gear seat	mm	0.020	0.020
		Cam base circle	mm	0.025	0.025
		All bearing points	mm	0.030	0.030
BE05.20-N-1007-04B	Cam elevation, valve cams over base circle diameter	Inlet	mm	7.3	7.3
		Outlet	mm	8.2	8.2
BE05.20-N-1008-04B	Cam elevation, unit pump over base circle diameter		mm	13.8	13.8

Check values for valve timing

Number	Designation			Engine 900.9, 902.9, 904.9, 906.9


BE05.30-N-1004-04B	Valve tappet outer Ø	Default	mm	17.844 to 17.865
		Deviation 0.25	mm	-
BE05.30-N-1005-04B	Valve tappet bore in crankcase	Default	mm	18.000 to 18.018
		Deviation 0.25	mm	-

 Oil pan

Number	Designation			Engine 900.9, 902.9, 904.9, 906.9, 924.9


BA01.45-N-1002-01B	Oil drain screw to oil pan	M201.5	Nm	65
		M261.5	Nm	85

 Engine lubrication

Number	Designation			Engine 902.9, 906.9 in model 957.5/6 without code MS8	Engine 902.9, 906.9 in model 957.5/6 with code MS8	Engine 904.9 in model 374.4, 375.1, 958.0, 972, 975, 976


BF18.00-N-1001-01C	Engine oil	Filling capacity with oil filter	l	29	29	15.8
		Specifications for Operating Fluids	Sheet	BB00.40-P-0228-05A	BB00.40-P-0226-09A	BB00.40-P-0228-05A
			Sheet	BB00.40-P-0228-03A	-	BB00.40-P-0228-03A
			Sheet	-	-	BB00.40-P-0228-01A
			Sheet	BB00.40-P-0228-31A	BB00.40-P-0228-31A	BB00.40-P-0228-31A
			Sheet	BB00.40-P-0228-51A	BB00.40-P-0228-51A	BB00.40-P-0228-51A

 Engine lubrication

Number	Designation			Engine 904.9 in model 668, 670	Engine 904.9 in model 673, 674, 676	Engine 904.9 in model 970 with code MP6/7/8


BF18.00-N-1001-01C	Engine oil	Filling capacity with oil filter	l	15.8	15.8	13.8
		Specifications for Operating Fluids	Sheet	BB00.40-P-0228-05A	BB00.40-P-0228-05A	BB00.40-P-0228-05A
			Sheet	BB00.40-P-0228-03A	BB00.40-P-0228-03A	BB00.40-P-0228-03A
			Sheet	BB00.40-P-0228-01A	BB00.40-P-0228-01A	BB00.40-P-0228-01A
			Sheet	BB00.40-P-0228-31A	BB00.40-P-0228-31A	BB00.40-P-0228-31A
			Sheet	BB00.40-P-0228-51A	BB00.40-P-0228-51A	BB00.40-P-0228-51A

 Engine lubrication

Number	Designation			Engine 904.9 in model 970 without code MP6/7/8	Engine 906.9 in model 374.4, 958.0, 972, 975, 976	Engine 906.9 in model 374.5, 375.3, 952, 953, 958.2


BF18.00-N-1001-01C	Engine oil	Filling capacity with oil filter	l	15.8	29	29
		Specifications for Operating Fluids	Sheet	BB00.40-P-0228-05A	BB00.40-P-0228-05A	BB00.40-P-0228-05A
			Sheet	BB00.40-P-0228-03A	BB00.40-P-0228-03A	BB00.40-P-0228-03A
			Sheet	BB00.40-P-0228-01A	BB00.40-P-0228-01A	BB00.40-P-0228-01A
			Sheet	BB00.40-P-0228-31A	BB00.40-P-0228-31A	BB00.40-P-0228-31A
			Sheet	BB00.40-P-0228-51A	BB00.40-P-0228-51A	BB00.40-P-0228-51A

 Engine lubrication

Number	Designation			Engine 906.9 in model 950, 954, without code MP6/7/8	Engine 906.9 in model 950, 954 with code MP6/7/8


BF18.00-N-1001-01C	Engine oil	Filling capacity with oil filter	l	29	27.5
		Specifications for Operating Fluids	Sheet	BB00.40-P-0228-05A	BB00.40-P-0228-05A
			Sheet	BB00.40-P-0228-03A	BB00.40-P-0228-03A
			Sheet	BB00.40-P-0228-01A	BB00.40-P-0228-01A
			Sheet	BB00.40-P-0228-31A	BB00.40-P-0228-31A
			Sheet	BB00.40-P-0228-51A	BB00.40-P-0228-51A

 Engine lubrication

Number	Designation			Engine 906.9 in model 970, 974 without code MP6/7/8	Engine 906.9 in model 970, 974 with code MP6/7/8


BF18.00-N-1001-01C	Engine oil	Filling capacity with oil filter	l	29	27.5
		Specifications for Operating Fluids	Sheet	BB00.40-P-0228-05A	BB00.40-P-0228-05A
			Sheet	BB00.40-P-0228-03A	BB00.40-P-0228-03A
			Sheet	BB00.40-P-0228-01A	BB00.40-P-0228-01A
			Sheet	BB00.40-P-0228-31A	BB00.40-P-0228-31A
			Sheet	BB00.40-P-0228-51A	BB00.40-P-0228-51A

001 589 53 21 00

363 589 02 21 00

904 589 02 14 00

000 589 20 21 00

Dial indicator

Hardness tester

Guide sleeve

Dial indicator holder

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